Answer: C. They transport oxygen throughout the body.
It is the primary function of red blood cells.
Hope it helped!
Converts to chemical energy.
energy is stored in ATP which is the main energy storing molecule.
Answer:
C. H and O
Explanation:
Almost 99% of the human body's mass is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus, in that order.
Element Symbol % in body
Oxygen O 65.0
Coal C 18.5
The human body is composed of 60% water, that is, H2O.